change in ARM uboot API

[Leif Lindholm]

Hi,

(not subscribed from this address, so please cc on any response)

I came across a bit of an issue with the ARM uboot GRUB port today,
which I believe will also affect the FreeBSD loader:
http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=commit;h=fe1378a961e508b31b1f29a2bb08ba1dac063155

In short, the global data pointer has now moved from r8 to r9, and
since no API bump was made as a result of this, software now needs to
preserve both of these registers across calls into u-boot.

If http://svnweb.freebsd.org/base/head/sys/boot/arm/uboot/start.S?view=markup
is the correct version to inspect, the current loader is affected.

Just a heads-up.

/
    Leif